Bulbophyllum
leucoglossum, Dendrobium
centrosepalum, Dendrobium
taeniocaule, and Taeniophyllum
pyriforme are here described as new species, based on herbarium specimens collected from the Lengguru fold-and-thrust belt in the West Papua Bird’s neck, Indonesian New Guinea. All four novelties were found growing in submontane forest (elevation > 1000 m a.s.l.) on limestone karst. Information concerning the distribution and habitat for these taxa is provided along with diagnostic features, line drawings, high resolution photographs, and a map of collecting localities. More field studies are required to find additional populations of these new species, in order to better characterize their habitat, ecology and conservation status.
The second largest genus of Orchidaceae, Dendrobium Swartz (1799: 82), has close to 1600 accepted species names (Govaerts et al. 2019). Indonesia is particularly rich in species of Dendrobium, with, for example, 114 and 53 species recorded from Sumatra and Java, respectively (Comber 1990, 2003). However, this pales in comparison to New Guinea, where 612 species of Dendrobium are known to occur, 86% of which are endemic. About 299 Dendrobium species are known from Indonesian New Guinea as opposed to 439 from Papua New Guinea, perhaps reflecting the lower collecting density in Indonesian New Guinea rather than actual lower species diversity (Schuiteman, unpublished).
The Goodyera rubicunda complex has broad morphological variation of the floral parts. A revision of the G. rubicunda complex was conducted and three intraspecific groups were recognised; G. rubicunda var. rubicunda which is the widespread variety, G. rubicunda var. triandra, and G. rubicunda var. australis var. nov. Herein, we propose the variety G. rubicunda var. australis from Australia and Papua New Guinea as newly described.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.